To give you a more detailed answer you'd have to let us know what system type you are using and a bit more info. It'd be best if you attached your .pd2 and .inp files for us to see.<br><br>Carol<br><br><div class="gmail_quote">
On Mon, Sep 13, 2010 at 5:57 AM, Mohammad Almasri <span dir="ltr"><<a href="mailto:malmasri@ems-int.com">malmasri@ems-int.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="color: blue;">Dear Nicholas,</span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;">If you mean that the consumption of the fans will increase when you
add the Heat recovery wheel ; this because of leaving the DP on the default
value (1 in.wg). the default number is very high .</span></p>
<p class="MsoNormal"><span style="color: blue;">You should either use the actual value or you can set this value as
zero if you included the heat wheel effect on the fan KW/cfm .</span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;">The eQUEST users archive have a good information about this issue ,
also the eQUEST help can provide a good support. </span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;"><img src="cid:image004.jpg@01CB535C.61321580" height="362" width="485"></span><span style="color: blue;"></span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;">Regards, </span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: blue;"><img src="cid:image005.jpg@01CB535C.61321580" alt="Masri_new" height="196" width="565"></span></p>
<p class="MsoNormal"><span style="color: blue;"> </span></p>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>
[mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Nicholas
Lander<br>
<b>Sent:</b> Monday, September 13, 2010 3:43 PM<br>
<b>To:</b> equest-users<br>
<b>Subject:</b> [Equest-users] Equest, heat recovery and separate outside air
systems</span></p>
</div><div><div></div><div class="h5">
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal"><span>Folks, <br clear="all">
</span></p>
<div>
<p class="MsoNormal"><span>First up,
thanks to Bill and David for answering my last question. </span> </p>
</div>
<div>
<p class="MsoNormal"><span>My follow
up is this:</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span>I'm trying
to model a separate outside air system with heat recovery. So I set it up so
all systems take outside air from my OA system (defined first). But if I then
try to add heat recovery to the OA system total energy (due to cooling and
fans) goes up.</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span>I'm
guessing that a factor in this is that the air goes to all the other systems
but then doesn't come back to the original OA system. (How to you specify
that?) Although, cooling loads should still go down since exhaust air, whose
quantify I specified, is still cooler than outside air. </span></p>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">So, how do I show any saving with OA heat (or coolth)
recovery, which I know will be huge?</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">thanks in advance.</p>
</div>
<div>
<p class="MsoNormal">Nick</p>
</div>
</div>
</div></div></div>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Carol Gardner PE<br>
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